Update deck and mixer synchronization, apply matched deck rates to splats, and queue remote stem extraction through the fleet. Refresh catalog and creator pipeline integration.
Validation: release VJ suite reports 890 passed, 10 failed, nine ignored. Eight mixer failures reproduce in serial execution (gain, transitions, sample alignment and video fades); two asynchronous media tests also failed in the full run. The new matched-rate splat test passes. These remaining failures are not claimed as fixed.